[C++] CHAPTER 5 샘플 코드

/* 샘플 코드 15 */
#include <iostream>

using namespace std;

int main(){
	int i = 0;

	while (i < 10) {
		cout << i << endl;
		i++;
	}
}

/* 샘플 코드 16 */
#include <iostream>

using namespace std;

int main() {

	for (int i = 0; i < 10; i++) {
		cout << i << " squared is " << i * i << endl;
	}

}

/* 샘플 코드 17 */
#include <iostream>
#include <string>

using namespace std;
int main() {
	string password;
	do {
		cout << "Please enter your password :";
		cin >> password;

	} while (password != "foobar");
	cout << "Welcome , you got the password right";
}

/* 샘플 코드 18 */
#include <iostream>
#include <string>

using namespace std;

int main() {
	string password;

	while (1) {
		cout << "Please enter your password :";
		cin >> password;
		if (password == "foobar") {
			break;
		}
	}
	cout << "Welcome , you got the password right";
}

/* 샘플 코드 19 */
#include <iostream>

using namespace std;

int main() {
	for (int i = 0; i < 10; i++) {
		cout << "\t" << i;
		
	}
	cout << "\n";
	

	for (int i = 0; i < 10; ++i) {
		cout << i;
		for (int j = 0; j < 10; ++j) {
			cout << "\t" << i * j;
		}
		cout << "\n";
	}
}